Volcano-tectonic evolution of the Christiana-Santorini-Kolumbo marine volcanic field / central Aegean Sea

克里斯蒂安娜-圣托里尼-科伦博海洋火山场/爱琴海中部的火山构造演化

• 批准号: 434763330
• 负责人: Professor Dr. Christian Hübscher
• 金额: --
• 依托单位: Institut für Geophysik (IfG)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/434763330?language=en
• 关键词: Volcano; tectonic; evolution; Christiana; Santorini

Volcanic hazards and risk mitigation lie at the heart of global geoscience, with about 800 million people living in regions threatened by eruptions. Volcanoes interact with their environments in complex ways, and better understanding of these interactions is of high scientific and socio-economic importance. The 100-km-long and 45-km-wide Christiana-Santorini-Kolumbo marine volcanic field developed in a complex rift system of Pliocene to Holocene age within the Hellenides. Here, the largest 20th century shallow earthquake in Europe of magnitude 7.4 took place in 1956. The Anhydros basin contains the Kolumbo volcanic chain adjacent to the volcanic island of Santorini. The so-called "Minoan" in the Late Bronze Age about 3600 yrs ago was the last Plinian eruption of Santorini, which was followed by a destructive tsunami. After reprocessing of a unique reflection seismic data compilation, this project strives for: 1) Reconstructing the rift processes of the individual basins. 2) Studying the relative temporal and causal relationship between rift tectonics and volcanism. 3) Investigating the collapse of the Santorini caldera after the Minoan eruption and volcano-tectonic overprint afterwards.

火山灾害和风险缓解是全球地球科学的核心，约有8亿人生活在受火山爆发威胁的地区。火山以复杂的方式与其环境相互作用，更好地了解这些相互作用具有很高的科学和社会经济意义。100公里长，45公里宽的克里斯蒂娜-圣托里尼-科隆博海洋火山场在希腊境内上新世至全新世的复杂裂谷系统中发育。1956年，这里发生了欧洲世纪最大的7.4级浅源地震。Anhydros盆地包含毗邻圣托里尼火山岛的Kolumbo火山链。大约3600年前的青铜时代晚期所谓的“米诺斯”是圣托里尼的最后一次普林尼火山爆发，随后发生了毁灭性的海啸。在对独特的反射地震数据汇编进行再处理后，该项目力求：1）重建单个盆地的裂谷过程。2)研究裂谷构造与火山活动之间的相对时间和因果关系。3)研究米诺斯火山爆发后圣托里尼火山口的坍塌和之后的火山构造叠加。